<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Hobby</title>
</head>
<body>
<form action="demo7" method="post" target="_blank">
    <label>用户名：</label>
    <input type="text" name="username" size="35">
    <br>
    <label>密码：</label>
    <input type="text" name="passwords" size="35">
    <br>
    <input type="checkbox" name="hobby" value="music">音乐
    <input type="checkbox" name="hobby" value="game">游戏
    <br>
    <input type="submit" value="提交">
</form>
</body>
</html>